AUTOMATIC POWER CONTROL FOR A RADIO FREQUENCY TRANSCEIVER OF AN IMPLANTABLE DEVICE
First Claim
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1. A method comprising:
- receiving a series of inductive synchronization signals at an implantable device;
detecting a loss of the series of inductive synchronization signals for a first predetermined period of time while a far field telemetry circuit of the implantable device becomes powered;
concurrently monitoring for both resumption of the inductive synchronization signal and commencement of a far field radio frequency synchronization signal upon detecting the loss of the series of inductive synchronization signals; and
terminating power to the far field radio frequency telemetry circuit after a second predetermined period of time if the series of inductive synchronization signals is not resumed following the first predetermined period of time.
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Abstract
Power supplied to a particular telemetry system of an implantable device having multiple telemetry systems is managed by a state machine. Power to a transceiver of a device is terminated if the particular telemetry system remains dormant or inactive for a programmable period of time and power to the transceiver is turned on if a particular signal is received by the implantable device.
105 Citations
20 Claims
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1. A method comprising:
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receiving a series of inductive synchronization signals at an implantable device; detecting a loss of the series of inductive synchronization signals for a first predetermined period of time while a far field telemetry circuit of the implantable device becomes powered; concurrently monitoring for both resumption of the inductive synchronization signal and commencement of a far field radio frequency synchronization signal upon detecting the loss of the series of inductive synchronization signals; and terminating power to the far field radio frequency telemetry circuit after a second predetermined period of time if the series of inductive synchronization signals is not resumed following the first predetermined period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification